# -*- coding: utf-8 -*-
#--------------------------------------------------------------------------
# Copyright (c) 2009 Barry Schwartz
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.

#--------------------------------------------------------------------------
#
# Low-level access to the FontForge library
#

cimport python

#--------------------------------------------------------------------------

class tex_type:
    unset   = 0
    text    = 1
    math    = 2
    mathext = 3

def tex_param(f):               # For f of type fontforge.font
    return [sf(f).texdata.params[i] for i in range(22)]

def tex_font_type(f):           # For f of type fontforge.font
    return sf(f).texdata.tex_type

#--------------------------------------------------------------------------

def swap_glyphs(f, i, j):
    cdef splinechar **glyphs
    cdef splinechar *temp
    if isinstance(i, str) or isinstance(i, bytes):
        i = f[i].originalgid
    if isinstance(j, str) or isinstance(j, bytes):
        j = f[j].originalgid
    glyphs = sf(f).glyphs
    temp = glyphs[i]
    glyphs[i] = glyphs[j]
    glyphs[i].orig_pos = i
    glyphs[j] = temp
    glyphs[j].orig_pos = j

def swap_notdef(f):
    # Move .notdef to orig_pos = 0.
    cdef int notdef_pos
    notdef_pos = f['.notdef'].originalgid
    if notdef_pos != 0:
        swap_glyphs(f, 0, notdef_pos)

#--------------------------------------------------------------------------
